blob: 7c349f07916a1bd6a55db4f2833ece12c63f22b3 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
|
/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* SGI specific setup.
*
* Copyright (C) 1995-1997,1999,2001-2004 Silicon Graphics, Inc. All rights reserved.
* Copyright (C) 1999 Ralf Baechle (ralf@gnu.org)
*/
#ifndef _ASM_IA64_SN_ARCH_H
#define _ASM_IA64_SN_ARCH_H
#include <asm/types.h>
#include <asm/percpu.h>
#include <asm/sn/types.h>
#include <asm/sn/sn_cpuid.h>
/*
* The following defines attributes of the HUB chip. These attributes are
* frequently referenced. They are kept in the per-cpu data areas of each cpu.
* They are kept together in a struct to minimize cache misses.
*/
struct sn_hub_info_s {
u8 shub2;
u8 nasid_shift;
u8 as_shift;
u8 shub_1_1_found;
u16 nasid_bitmask;
};
DECLARE_PER_CPU(struct sn_hub_info_s, __sn_hub_info);
#define sn_hub_info (&__get_cpu_var(__sn_hub_info))
#define is_shub2() (sn_hub_info->shub2)
#define is_shub1() (sn_hub_info->shub2 == 0)
/*
* Use this macro to test if shub 1.1 wars should be enabled
*/
#define enable_shub_wars_1_1() (sn_hub_info->shub_1_1_found)
/*
* This is the maximum number of nodes that can be part of a kernel.
* Effectively, it's the maximum number of compact node ids (cnodeid_t).
* This is not necessarily the same as MAX_NASIDS.
*/
#define MAX_COMPACT_NODES 2048
#define CPUS_PER_NODE 4
extern void sn_flush_all_caches(long addr, long bytes);
#endif /* _ASM_IA64_SN_ARCH_H */
|
